Finding the Third Proportional to 12,408.19 and 19,161.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,408.19 : 19,161.56 = 19,161.56 : x
2. Step 2: Convert to fraction form
   12,408.19/19,161.56 = 19,161.56/x
3. Step 3: Cross multiply
   12,408.19x = 19,161.56 × 19,161.56
4. Step 4: Simplify right side
   12,408.19x = 367,165,477.44
5. Step 5: Solve for x
   x = 367,165,477.44/12,408.19
6. Step 6: Final answer
   x = 29,590.58